drivers/net/wireless/scsc/cac.h

   1 /****************************************************************************
   2  *
   3  * Copyright (c) 2012 - 2017 Samsung Electronics Co., Ltd. All rights reserved
   4  *
   5  ****************************************************************************/
   6
   7 #ifndef CAC_H
   8 #define CAC_H
   9
  10 #include <linux/kernel.h>
  11 #include "dev.h"
  12 #include "debug.h"
  13 #include "mlme.h"
  14 #include "mgt.h"
  15
  16 /* management */
  17 #define WLAN_OUI_CISCO                          0x004096 /* Cisco systems OUI */
  18 #define WLAN_OUI_TYPE_CISCO_EDCA                0x09
  19
  20 #define WMM_OUI_SUBTYPE_INFORMATION_ELEMENT     0
  21 #define WMM_OUI_SUBTYPE_PARAMETER_ELEMENT       1
  22 #define WMM_OUI_SUBTYPE_TSPEC_ELEMENT           2
  23 #define WMM_VERSION                             1
  24 #define WMM_ACTION_CODE_ADDTS_REQ               0
  25 #define WMM_ACTION_CODE_ADDTS_RESP              1
  26 #define WMM_ACTION_CODE_DELTS                   2
  27 #define WMM_ADDTS_STATUS_ADMISSION_ACCEPTED     0
  28 #define WMM_ADDTS_STATUS_INVALID_PARAMETERS     1
  29 /* 2 - Reserved */
  30 #define WMM_ADDTS_STATUS_REFUSED                3
  31 /* 4-255 - Reserved */
  32
  33 /* WMM TSPEC Direction Field Values */
  34 #define WMM_TSPEC_DIRECTION_UPLINK              0
  35 #define WMM_TSPEC_DIRECTION_DOWNLINK            1
  36 /* 2 - Reserved */
  37 #define WMM_TSPEC_DIRECTION_BI_DIRECTIONAL      3
  38
  39 /* WMM TSPEC PSB Field Values */
  40 #define WMM_TSPEC_PSB_UNSPECIFIED               2
  41
  42 #define ADDTS_STATUS_ACCEPTED                   0x00
  43 #define ADDTS_STATUS_INVALID_PARAM              0x01
  44 #define ADDTS_STATUS_REFUSED                    0x03
  45 #define ADDTS_STATUS_DELAY                      0x2F
  46 #define ADDTS_STATUS_UNSPECIFIED                0xC8
  47 #define ADDTS_STATUS_POLICY_CONFIG              0xC9
  48 #define ADDTS_STATUS_ASSOC_DENIED               0xCA
  49 #define ADDTS_STATUS_INVALID_PARAM2             0xCB
  50
  51 #define TSINFO_MASK                             0x00FFFFFF
  52
  53 #define CCX_MAX_NUM_RATES                       8
  54
  55 #define TSID_MIN                                0
  56 #define TSID_MAX                                7
  57
  58 #define TSRS_RATE_PER_UNIT                      500000
  59 #define IEEE80211_HEADER_SIZE                   24
  60
  61 #define MAX_TRANSMIT_MSDU_LIFETIME_NOT_VALID    -1
  62 #define BSS_CCX_DISABLED                        0
  63 #define BSS_CCX_ENABLED                         1
  64
  65 /* Macros for handling unaligned memory accesses */
  66 #define CAC_GET_LE16(a)                         ((u16)(((a)[1] << 8) | (a)[0]))
  67 #define CAC_PUT_LE16(a, val)            \
  68         do {                    \
  69                 (a)[1] = ((u16)(val)) >> 8;    \
  70                 (a)[0] = ((u16)(val)) & 0xff;    \
  71         } while (0)
  72 #define CAC_PUT_BE24(a, val)                    \
  73         do {                            \
  74                 (a)[0] = (u8)((((u32)(val)) >> 16) & 0xff);    \
  75                 (a)[1] = (u8)((((u32)(val)) >> 8) & 0xff);    \
  76                 (a)[2] = (u8)(((u32)(val)) & 0xff);        \
  77         } while (0)
  78 #define CAC_GET_LE24(a) ((((u32)(a)[2]) << 16) | (((u32)(a)[1]) << 8) | ((u32)(a)[0]))
  79 #define CAC_PUT_LE24(a, val)                    \
  80         do {                            \
  81                 (a)[2] = (u8)((((u32)(val)) >> 16) & 0xff);    \
  82                 (a)[1] = (u8)((((u32)(val)) >> 8) & 0xff);    \
  83                 (a)[0] = (u8)(((u32)(val)) & 0xff);        \
  84         } while (0)
  85 #define CAC_GET_LE32(a) ((((u32)(a)[3]) << 24) | (((u32)(a)[2]) << 16) | \
  86                          (((u32)(a)[1]) << 8) | ((u32)(a)[0]))
  87 #define CAC_PUT_LE32(a, val)                    \
  88         do {                            \
  89                 (a)[3] = (u8)((((u32)(val)) >> 24) & 0xff);    \
  90                 (a)[2] = (u8)((((u32)(val)) >> 16) & 0xff);    \
  91                 (a)[1] = (u8)((((u32)(val)) >> 8) & 0xff);    \
  92                 (a)[0] = (u8)(((u32)(val)) & 0xff);        \
  93         } while (0)
  94
  95 #define IEEE80211_FC(type, stype) (u16)(type | stype)
  96
  97 /* WMM TSPEC Element */
  98 struct wmm_tspec_element {
  99         char eid;         /* 221 = 0xdd */
 100         u8   length;      /* 6 + 55 = 61 */
 101         u8   oui[3];      /* 00:50:f2 */
 102         u8   oui_type;    /* 2 */
 103         u8   oui_subtype; /* 2 */
 104         u8   version;     /* 1 */
 105         /* WMM TSPEC body (55 octets): */
 106         u8   ts_info[3];
 107         u16  nominal_msdu_size;
 108         u16  maximum_msdu_size;
 109         u32  minimum_service_interval;
 110         u32  maximum_service_interval;
 111         u32  inactivity_interval;
 112         u32  suspension_interval;
 113         u32  service_start_time;
 114         u32  minimum_data_rate;
 115         u32  mean_data_rate;
 116         u32  peak_data_rate;
 117         u32  maximum_burst_size;
 118         u32  delay_bound;
 119         u32  minimum_phy_rate;
 120         u16  surplus_bandwidth_allowance;
 121         u16  medium_time;
 122 } __packed;
 123
 124 #define MSDU_LIFETIME_DEFAULT 512
 125
 126 struct cac_activated_tspec {
 127         struct wmm_tspec_element tspec;
 128         int                      ebw;
 129 };
 130
 131 struct tspec_field {
 132         const char *name;
 133         int        read_only;
 134         int        is_tsinfo_field;
 135         u8         size;
 136         u32        offset;
 137 };
 138
 139 struct cac_tspec {
 140         struct cac_tspec         *next;
 141         int                      id;
 142         struct wmm_tspec_element tspec;
 143         u8                      psb_specified;
 144         int                      ebw;
 145         int                      accepted;
 146         u8                       dialog_token;
 147 };
 148
 149 #define OFFSETOF(m) ((size_t)&((struct wmm_tspec_element *)0)->m)
 150
 151 struct wmm_action_hdr {
 152         u8 category;
 153         u8 action;
 154         u8 dialog_token;
 155         u8 status_code;
 156 } __packed;
 157
 158 struct action_addts_req {
 159         struct wmm_action_hdr    hdr;
 160         struct wmm_tspec_element tspec;
 161 } __packed;
 162
 163 struct action_addts_rsp {
 164         struct wmm_action_hdr hdr;
 165 } __packed;
 166
 167 struct action_delts_req {
 168         struct wmm_action_hdr    hdr;
 169         struct wmm_tspec_element tspec;
 170 } __packed;
 171 /* prototypes for public functions */
 172 int cac_ctrl_create_tspec(struct slsi_dev *sdev, char *args);
 173 int cac_ctrl_config_tspec(struct slsi_dev *sdev, char *args);
 174 int cac_ctrl_send_addts(struct slsi_dev *sdev, char *args);
 175 int cac_ctrl_send_delts(struct slsi_dev *sdev, char *args);
 176 int cac_update_local_tspec(struct slsi_dev *sdev, u16 msdu_lifetime, struct wmm_tspec_element *tspec);
 177 int cac_get_active_tspecs(struct cac_activated_tspec **tspecs);
 178 void cac_delete_tspec_list(struct slsi_dev *sdev);
 179 int cac_ctrl_delete_tspec(struct slsi_dev *sdev, char *args);
 180 void cac_rx_wmm_action(struct slsi_dev *sdev, struct net_device *netdev, struct ieee80211_mgmt *data, size_t len);
 181 void cac_update_roam_traffic_params(struct slsi_dev *sdev, struct net_device *dev);
 182 #endif /* CAC_H */